In order to capture day light and concentrate the same inside a dark room, particularly in urban slum or rural areas which lack electricity supply, a low cost and energy efficient Micro Solar Dome (Surya Jyoti) has been tested and developed.
Surya jyothi project is supported by CHF International and funded by Bill and Melinda Gates Foundation, Nagpur to provide solar energy mechanism to ensure a better life for the urban poor.
• To launch a sustainable campaign to promote clean energy sources among the poor in the urban localities.
• To develop clean energy linked micro finance products which would directly influence the livening style of the poor.
• To mobilize and activate the community to respond to sustainable green energy prospects by providing solar lamp accessible and affordable to the slum communities.
• Develop community based entrepreneurship to promote green energy channel.
Working of the device:
• The Micro Solar Dome captures sunlight through a transparent semi-spherical upper dome and concentrates it inside a dark room.
• The light passes through a sun-tube having a thin layer of highly reflective coating on the inner wall of the passage.
• It also contains a lower dome having a shutter at the bottom that can be closed if light is not required in the daytime.
• It is leak proof and works for almost 16 hours daily i.e. throughout the day and 4 hours after sunset.
• The Photo-Voltaic Integrated Micro Solar Dome costs about Rs.1200 and the Non Photo-Voltaic version around Rs. 500.
• If this technology is adopted in 10 million households only, it has the potential of saving 1750 million units of energy.
• This technology would lead to the saving of fossil fuels to a great extent as 1 unit of energy saved is equivalent to 3 units of energy generated.
• It would also lead to an emission reduction of about 12.5 million ton of CO2.
• The Device would also lead to an emission reduction of about 5 million ton of CO2 equivalent, hence giving a fillip to the mission of Clean India, Green India.
• The manufacturing process, being labour-intensive, would also generate huge job opportunities in the economy.
• Incubation centres will be brought up under the Start up India, Stand up India programme which would encourage entrepreneurship in the solar sector to make commercialization of the device viable.
• It would prove to be a boon for the urban and rural households in the country that do not have reliable access to electricity.